N by Natori Oasis Soft Brushed Knit Sleepshirt (SC2043). The N by Natori Oasis Soft Brushed Knit Sleepshirt SC2043 has a piped white trim at collar and pocket on chest, with partial mother-of-pearl buttoned neck. N by Natori's Oasis Soft Brushed Knit Sleepshirt is made of polyester/spandex.